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Special functions
Deviations in the temperature values displayed, for example due to cables which are to
long or sensors which are not positioned optimally, can be compensated for manually
here. The settings can be made for each individual sensor in steps of 0.8 °C (tempera-
ture) resp. 0.2 % of the measuring range of the VFS / RPS sensor (flow rate / pressure)
per step.
Settings are only necessary in special cases at the time of initial com-
missioning by the specialist. Incorrect measurement values can lead to
unpredictable errors.
All of the settings that have been made can be reset, thus returning the controller to its
delivery state.
The entire parametrisation, analyses, etc. of the controller will be lost
irrevocably. The controller must then be commissioned once again.
6.7. - Sensor calibration
With some solar systems, especially with evacuated tube collectors, it may occur that
the measurement value acquisition at the collector sensor occurs too slowly or too ina-
ccurately because the sensor is often not at the hottest location. When the start help is
activated the following sequence is carried out: If the temperature at the collector sen-
sor increases by the value specified under “Increase” within one minute, then the solar
pump is switched on for the set “Purging time” so that the medium to be measured
can be moved to the collector sensor. If this still does not result in a normal switch-on
condition, then the start help function is subject to a 5-minute lockout time.
This function should only be activated by a specialist if problems arise with
acquisition of measurement values. In particular follow the instructions from
the collector manufacturer.
Starting the commissioning help guides you in the correct order through the basic
settings necessary for commissioning, and provides brief descriptions of each parame-
ter in the display. Pressing the “esc” key takes you back to the previous value so you
can look at the selected setting again or adjust it if desired. Pressing the “esc” more
than once takes you back to the selection mode, thus cancelling the commissioning
help (see also E.2)..
May only be started by a specialist during commissioning! Observe the
explanations for the individual parameters in these instructions, and
check whether further settings are necessary for your application.
6.10. - Start aid function
6.9. - Factory settings
6.8. - Commissioning
Caution
Caution
Caution
Caution
